EVENT ID 184: The Microsoft Dynamics AX Application Object Server is running on an operating system that is not supported. The supported operating system is Microsoft Windows Server 2003 with Service Pack 1.

AX2009 is FULLY supported on Windows 2008 R2. The reason this message is displayed is because the logic behind the message is deep within the kernel code, and changing it could cause problems elsewhere in the application.

For more information see the systems requirements page.